Respuesta :
the head is described as p]hydrophilic which means it likes water, where the other side aka the tail its descrbied as hydrophobic because it hates water
Nucleic acids have a definite polarity, or directionality with the characteristics of one end being different from the other. these ends are described as one being 3' and the other 5'.
In nucleic acids, their strands are always directional. For instance, given the DNA molecule, one of its strand during replication is copied in the 5' to 3' direction.
This also means that one end has an 3' carbon that is not linked; the other end has an unlinked 5' carbon. This is also the same for RNAs.
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